4121540120 has 32 divisors (see below), whose sum is σ = 9289814400. Its totient is φ = 1645709568.

The previous prime is 4121540113. The next prime is 4121540141. The reversal of 4121540120 is 210451214.

It is a happy number.

It is a super-2 number, since 2×4121540120² = 33974185921539228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4121540092 and 4121540101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67784 + ... + 113303.

It is an arithmetic number, because the mean of its divisors is an integer number (290306700).

Almost surely, 2^4121540120 is an apocalyptic number.

4121540120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4121540120 is an abundant number, since it is smaller than the sum of its proper divisors (5168274280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4121540120 is a wasteful number, since it uses less digits than its factorization.

4121540120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181667 (or 181663 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 4121540120 is about 64199.2221136674. Note that the first 3 decimals coincide. The cubic root of 4121540120 is about 1603.3186483076.

Adding to 4121540120 its reverse (210451214), we get a palindrome (4331991334).

The spelling of 4121540120 in words is "four billion, one hundred twenty-one million, five hundred forty thousand, one hundred twenty".